Reducing In-Device Interference Between Multiple Wireless Communications of a Multi-Mode Mobile Device

• US 20130107867A1
• Filed: 02/23/2011
• Published: 05/02/2013
• Est. Priority Date: 03/17/2010
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Li, Yan, Gao, Lu
• Granted Patent: US 9,264,916 B2
• Time in Patent Office: Days
• US Class Current: 370/336
• CPC Class Codes: H04B 1/005 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
• CPC Class Codes: H04B 1/0475 with means for limiting noise, interference or distortion H04B1/0483 takes precedence
• CPC Class Codes: H04B 1/109 by improving strong signal performance of the receiver when strong unwanted signals are present at the receiver input
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 72/1215 for collaboration of different radio technologies
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A particular method includes predicting, by a mobile device, that interference may occur during one or more specified time slots of a set of upcoming scheduled time slots of a wireless communication channel. The method also includes sending a message to a network device instructing the network device to prevent sending information to the mobile device during the one or more specified time slots.

Claims

1. A method, comprising:

predicting, by a mobile device, that interference may occur during one or more specified time slots of a set of upcoming scheduled time slots of a wireless communication channel; and

sending a message to a network device instructing the network device to prevent sending information to the mobile device during the one or more specified time slots.

2. The method of claim 1, wherein the message comprises a pattern of mask bits, wherein each of the mask bits has a bit position corresponding to one of the upcoming scheduled time slots and has a bit value indicating whether the information should be prevented from being sent during one of the upcoming scheduled time slots.

3. The method of claim 2, wherein a data rate control (DRC) mask that includes the mask bits is sent to the network device via an extended DRC channel of the wireless communication channel.

4. The method of claim 3, wherein the message includes the DRC mask and a DRC value indicating a requested data rate at which data is to be sent from the network device to the mobile device.

5. The method of claim 4, wherein the message is a protocol data unit (PDU) that includes the DRC mask and the DRC value.

6. The method of claim 2, wherein the message is sent to the network device via a dedicated data rate control (DRC) mask channel of the wireless communication channel.

7. The method of claim 6, wherein the dedicated DRC mask channel is associated with a unique Walsh code.

8. The method of claim 1, wherein the message is sent to the network device via a data source control (DSC) channel of the wireless communication channel.

9. The method of claim 8, wherein the DSC channel is configured to carry a set of DSC covers.

10. The method of claim 9, wherein a designated DSC cover of the set of DSC covers indicates the one or more specified time slots of the set of upcoming scheduled time slots during which interference is predicted.

11. The method of claim 10, wherein the set of DSC covers is a set of eight Walsh codes.

12. The method of claim 1, wherein the interference is predicted based on a transmission to be sent by the mobile device to a second network device that may interfere with a reception of the information by the mobile device.

13. The method of claim 12, further comprising:

sending the transmission via a first transceiver of the mobile device; and

receiving at least a portion of the information via a second transceiver of the mobile device, wherein sending the transmission does not interfere with receiving the information.

14. The method of claim 13, wherein the transmission is a Global System for Mobile Communications (GSM) transmission, and wherein the reception is a High Rate Packet Data (HRPD) reception that is scheduled to occur concurrently with the GSM transmission.

15. The method of claim 14, wherein the specified time slots are scheduled HRPD time slots during which HRPD data is to be received by the mobile device.

16. The method of claim 13, wherein the transmission is a Bluetooth transmission or a wireless local area network (WLAN) transmission and wherein the reception is a Long Term Evolution (LTE) reception or High Speed Packet Access (HSPA) reception.

17. An apparatus, comprising:

a processor comprising;

a scheduler configured to determine that interference may occur during one or more specified time slots of a set of upcoming scheduled time slots of a wireless communication channel; and

a message generator configured to receive data from the scheduler that indicates the specified time slots and further configured to encode the data into a message.

18. The apparatus of claim 17, wherein the message generator is configured to encode the data as a data rate control (DRC) mask to be transmitted to a network device.

19. The apparatus of claim 18, further comprising:

a first transceiver configured to transmit Global System for Mobile Communications (GSM) data to a GSM network device; and

a second transceiver configured to receive High Rate Packet Data (HRPD) data from an HRPD network device and further configured to transmit the message to the HRPD network device.

20. The apparatus of claim 19, integrated into a dual HRPD/GSM mobile device.

21. An apparatus, comprising:

means for determining that interference may occur during one or more specified time slots of upcoming scheduled time slots of a wireless communication channel; and

means for encoding data indicating the specified time slots into a message.

22. The apparatus of claim 21, further comprising:

means for transmitting Global System for Mobile Communications (GSM) data; and

means for receiving High Rate Packet Data (HRPD) data,

wherein the specified time slots are HRPD time slots during which the GSM data is to be transmitted.

23. A computer readable medium including instructions operable, when executed by a processor, to cause the processor to:

predict, by a mobile device, that interference may occur during one or more specified time slots of a set of upcoming scheduled time slots of a wireless communication channel; and

send a message to a network device instructing the network device to prevent sending information to the mobile device during the specified time slots.

24. The computer readable medium of claim 23, wherein the message includes a mask bit pattern that includes multiple bits, wherein each of the bits has a bit position corresponding to one of the upcoming scheduled time slots and has a bit value indicating whether the information should be prevented from being sent during one of the upcoming scheduled time slots.

25. The computer readable medium of claim 24, wherein the instructions are further operable, when executed by the processor, to cause the processor to reference each bit of the mask bit pattern to determine, for each particular time slot of the set of upcoming scheduled time slots, whether the mobile device should receive data from the network device during each particular time slot.

26. A method, comprising:

receiving, by a network device, a message from a mobile device that indicates mobile device transmission interference during one or more specified time slots of a set of upcoming scheduled time slots of a wireless communication channel.

27. The method of claim 26, further comprising determining whether information is scheduled to be sent to the mobile device during the one or more specified time slots.

28. The method of claim 27, further comprising, in response to determining that the information is scheduled to be sent to the mobile device during the one or more specified time slots, reassigning the one or more specified time slots from the mobile device to a second mobile device.

29. An apparatus, comprising:

a receiver configured to receive a message from a mobile device, wherein the message includes multiple bits, and wherein each of the bits has a bit position corresponding to a time slot of a set of upcoming scheduled time slots and has a bit value indicating whether to send information to the mobile device during the corresponding time slot; and

a transmitter configured to selectively transmit the information to the mobile device in specified time slots in response to the received message.

30. The apparatus of claim 29, wherein the message includes a data rate control (DRC) mask that includes the multiple bits, and wherein the message further includes a DRC value.

31. The apparatus of claim 29, wherein the message is received via a dedicated channel associated with a unique Walsh code.

32. The apparatus of claim 29, wherein the message includes a data source control (DSC) cover.

33. An apparatus, comprising:

means for receiving a message from a mobile device that the mobile device indicates mobile device transmission interference during one or more time slots of a set of upcoming scheduled time slots of a wireless communication channel; and

means for transmitting information to the mobile device in response to the received message.

34. The apparatus of claim 33, wherein the message includes a mask bit pattern that includes multiple bits, wherein each of the bits corresponds to one of the upcoming scheduled time slots.

35. A computer readable medium including instructions operable, when executed by a processor, to cause the processor to:

receive a message from a mobile device, wherein the message includes multiple bits, and wherein each of the bits has a bit position corresponding to a time slot of a set of upcoming scheduled time slots and has a bit value indicating whether to prevent sending information to the mobile device during the corresponding time slot.

36. The computer readable medium of claim 35, wherein the instructions are further operable, when executed by the processor, to cause the processor to reassign at least one of the upcoming scheduled time slots from the mobile device to a second mobile device.